20432964511 has 2 divisors, whose sum is σ = 20432964512. Its totient is φ = 20432964510.

The previous prime is 20432964469. The next prime is 20432964523. The reversal of 20432964511 is 11546923402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20432964511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20432964551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216482255 + 10216482256.

It is an arithmetic number, because the mean of its divisors is an integer number (10216482256).

Almost surely, 2^20432964511 is an apocalyptic number.

20432964511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432964511 is an equidigital number, since it uses as much as digits as its factorization.

20432964511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 20432964511 in words is "twenty billion, four hundred thirty-two million, nine hundred sixty-four thousand, five hundred eleven".